Generate Private Public PGP key
We can generate Private Public PGP key and use it for our own message/files encryption, we have a public key (to lock/encrypt the message) and a private key (to unlock/decrypt the message). We would give our Public key to different vendor/client so that they can send us the encrypted sensitive message/files. Once we receive an encrypted message, we use our private key to decrypt it.
Will generate the Keys by using Kleopatra tool, please check and install the software before starting with this tutorial.
Once installed, run the Kleopatra
Click New Key Pair
Provide Name and Email, Click Next
Click Create
Add passphrase – for our POC we will use mulesy, please use strong password
Key Pair Successfully created 
We can see the key now
Right click and export the Public key
In first export we will export the Public Key in Text format (.asc extension)
And then in binary format which is accepted by the MuleSoft Crypto (.gpg extension)
Similarly we will export the private key
Export both asc and gpg extension again in similar way how we generated the Public key
Now we have both public and private keys in both text and binary
We need two information for doing encryption and decryption in MuleSoft
- Passphrase
- Fingerprint
Passphrase we already set to mulesy while key creation and now let’s get the fingerprint
Right click on key and click on Details
Note down the fingerprint (remove spaces) – 4232E6BD7151FF89D9F755807AC70C45987C59AA 
So now we have required details about the key to use in MuleSoft
For Encryption
- Fingerprint – 4232E6BD7151FF89D9F755807AC70C45987C59AA
- Public Key – Public_4232E6BD7151FF89D9F755807AC70C45987C59AA.gpg
For Decryption
- Passphrase – mulesy
- Fingerprint – 4232E6BD7151FF89D9F755807AC70C45987C59AA
- Private Key – Private_4232E6BD7151FF89D9F755807AC70C45987C59AA.gpg
This completes our first scenario and now you can pass on the Public key to your client for encryption.
Just to show we are on right track we can use below URL for testing our Private and Public Key
https://8gwifi.org/pgpencdec.jsp
Select the Encrypt Message and Paste your Message and Public key Text (from Public_4232E6BD7151FF89D9F755807AC70C45987C59AA.asc file)
We can see the Encrypted Message – Copy the same
Now Select Decrypt – Paste the encrypted message which we copied before along with Private Key Text (from Private_4232E6BD7151FF89D9F755807AC70C45987C59AA.asc extension) and the PassPhrase of the Private Key – mulesy
Click Decrypt and now we can see the Message which we encrypted in earlier step. 
Attaching all keys for reference – PGP_keys